Nudibranch pair & cleaner shrimp (Risbecia tryoni). Indo Pacific

nobody sealife sea life underwater indo pacific indo pacific indian ocean pacific ocean nudibranch nudibranchs nudibranches sea slug sea slugs sea slug sea slugs sea slugss chromodoris sp three animals invertebrate invertebrates weird strange unusual pattern psychedelic exotic tropical seabed sea bed cleaner shrimp shrimps risbecia tryoni cleaning symbiotic relationship symbiosis